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Robust feature learning for acoustic...

Xia, Rui.

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Robust feature learning for acoustic emotion recognition.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Robust feature learning for acoustic emotion recognition./
作者:	Xia, Rui.
面頁冊數:	108 p.
附註:	Source: Dissertation Abstracts International, Volume: 77-05(E), Section: B.
Contained By:	Dissertation Abstracts International77-05B(E).
標題:	Computer science. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3742860
ISBN:	9781339354750

Robust feature learning for acoustic emotion recognition.
Xia, Rui.

Robust feature learning for acoustic emotion recognition. - 108 p.

Source: Dissertation Abstracts International, Volume: 77-05(E), Section: B.

Thesis (Ph.D.)--The University of Texas at Dallas, 2015.

With increasing needs and developments of human-computer interaction systems, building robust systems to let computers understand humans' mood has become one of the essential components. Automatic emotion recognition/detection is necessary for machines to explore humans' emotional expressions. This dissertation focuses on learning robust features for building acoustic emotion recognition systems.

ISBN: 9781339354750Subjects--Topical Terms:

523869
Computer science.

Robust feature learning for acoustic emotion recognition.
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245 1 0 $a Robust feature learning for acoustic emotion recognition.
300 $a 108 p.
500 $a Source: Dissertation Abstracts International, Volume: 77-05(E), Section: B.
500 $a Adviser: Yang Liu.
502 $a Thesis (Ph.D.)--The University of Texas at Dallas, 2015.
520 $a With increasing needs and developments of human-computer interaction systems, building robust systems to let computers understand humans' mood has become one of the essential components. Automatic emotion recognition/detection is necessary for machines to explore humans' emotional expressions. This dissertation focuses on learning robust features for building acoustic emotion recognition systems.
520 $a We first investigate extracting features from frame-level based features. We adopt the ivector space modeling method to extract high-level features. Furthermore, based on i-vector space modeling, we develop the novel framework to generate multiple i-vector feature sets associated with emotion classes. The i-vector feature sets yield competitive performance with supra-segmental level based features, and the performance improves using a decision combination of the frame level based system and supra-segmental level based system.
520 $a Second, based on supra-segmental level features, we apply deep learning techniques to extract high-level emotional feature representations. We propose a framework based on the neural network structure to project the original feature space into two different feature representations, and extract the one with more emotional cues as new features. In addition, we propose to model genders individually in the neural network structure in order to alleviate the gender variability to improve emotion recognition performance. Furthermore, we utilize multi-task learning by considering continuous dimensional information to improve categorical emotion recognition.
520 $a Finally, we develop a novel framework using Deep Belief Network (DBN) in the paradigm of i-vector space modeling approach. This framework can combine the advantages of the two approaches. The DBN is discriminatively trained using reference labels automatically generated by the universal background model (UBM) and Gaussian Mixture Models (GMMs). The i-vector feature set obtained from this proposed method outperforms the traditional i-vector extracting framework.
520 $a We believe a robust feature set is very important in emotion recognition systems. This dissertation will contribute to a general approach to learn a high-level rich emotional feature representation, which can advance the performance of current emotion recognition systems.
590 $a School code: 0382.
650 4 $a Computer science. $3 523869
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710 2 $a The University of Texas at Dallas. $b Computer Science. $3 1682289
773 0 $t Dissertation Abstracts International $g 77-05B(E).
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791 $a Ph.D.
792 $a 2015
793 $a English
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